Python – Script6: Take Backup Configs of Multiple devices via Telnet

Step1: Configure the file with all IP details of multiple devices

 nano myswitches

192.168.10.21 192.168.10.22 192.168.10.23 192.168.10.24

Step2: Configure file for the python script

nano configbackup.py

import getpass import sys import telnetlib   # Get Username & Password user = raw_input(“Enter your telnet username: “) password = getpass.getpass()   # Open file with list of switches f = open (‘myswitches’)   # Telnet to each switch and configure it for line in f:     print “Getting running-config ” + (line)     HOST = line.strip()     tn = telnetlib.Telnet(HOST)       tn.read_until(“Username: “)     tn.write(user + “\n”)     if password:               tn.read_until(“Password: “)               tn.write(password + “\n”)       tn.write(“enable\n”)     tn.write(“cisco\n”)     tn.write(“terminal length 0\n”)     tn.write(“show run\n”)     tn.write(“exit\n”)       readoutput = tn.read_all()     saveoutput = open(“Backup_Switch_” + HOST, “w”)     saveoutput.write(readoutput)     saveoutput.close

Step3: Give Command ‘ls’ to see all files

Step4: Command ‘cat’ to open any file . Ex – cat switch_192.168.10.21

Step5: To see any file line by line. You need to install ‘less’ by command – apt-get install less.

              Command – less switch_192.168.10.21